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We report results from the preliminary trials of Colibri, a dedicated fast-photometry array for the detection of small Kuiper belt objects through serendipitous stellar occultations. Colibri's novel data processing pipeline analyzed 4000…

地球与行星天体物理 · 物理学 2017-12-20 Emily Pass , Stanimir Metchev , Peter Brown , Steven Beauchemin

The results of a search for sub-km Kuiper Belt Objects (KBOs) with the method of serendipitous stellar occultations are reported. Photometric time series were obtained on the 1.8m telescope at the Dominion Astrophysical Observatory (DAO) in…

天体物理学 · 物理学 2009-11-13 S. J. Bickerton , J. J. Kavelaars , D. L. Welch

We present high precision K-band photometry of the transit and secondary eclipse of extrasolar planet OGLE-TR-113, using the SOFI near-infrared instrument on ESO's NTT. Data were taken in 5 second exposures over two periods of 3-4 hours,…

天体物理学 · 物理学 2008-11-26 I. A. G. Snellen , E. Covino

Tsinghua-NAOC (National Astronomical Observatories of China) Telescope (hereafter, TNT) is an 80-cm Cassegrain reflecting telescope located at Xinglong bservatory of NAOC, with main scientific goals of monitoring various transients in the…

天体物理仪器与方法 · 物理学 2015-06-05 Fang Huang , Jun-Zheng Li , Xiao-Feng Wang , Ren-Cheng Shang , Tian-Meng Zhang , Jing-Yao Hu , Yu-Lei Qiu , Xiao-Jun Jiang

The Transiting Exoplanet Survey Satellite (TESS) is the latest observational effort to find exoplanets and map bright transient optical phenomena. Supernovae (SN) are particularly interesting as cosmological standard candles for…

宇宙学与河外天体物理 · 物理学 2021-05-26 B. W. Holwerda , S. Knabel , R. C. Steele , L. Strolger , J. Kielkopf , A. Jacques , W. Roemer

We describe the Dragonfly Telephoto Array, a robotic imaging system optimized for the detection of extended ultra low surface brightness structures. The array consists of eight Canon 400mm f/2.8 telephoto lenses coupled to eight…

天体物理仪器与方法 · 物理学 2014-01-23 Roberto G. Abraham , Pieter van Dokkum

In a $\Lambda$CDM universe, most galaxies evolve by mergers and accretions, leaving faint and/or diffuse structures, such as tidal streams and stellar halos. Although these structures are a good indicator of galaxies' recent mass assembly…

The Evryscope is a telescope array designed to open a new parameter space in optical astronomy, detecting short timescale events across extremely large sky areas simultaneously. The system consists of a 780 MPix 22-camera array with an 8150…

天体物理仪器与方法 · 物理学 2019-05-29 Jeffrey K. Ratzloff , Nicholas M. Law , Octavi Fors , Henry T. Corbett , Ward S. Howard , Daniel del Ser , Joshua Haislip

Measuring the size distribution of small (km-scale) KBOs can help constrain models of Solar System formation and planetary migration. Such small, distant bodies are hard to detect with current or planned telescopes, but can be identified as…

地球与行星天体物理 · 物理学 2023-10-06 Guy Nir , Eran O. Ofek , David Polishook , Barak Zackay , Sagi Ben-Ami

We demonstrate coincidence measurements of spatially entangled photons by means of a novel type of multi-pixel based detection array. The adopted sensor is a fully digital 8$\times$16 silicon photomultiplier array allowing not only photon…

仪器与探测器 · 物理学 2016-12-19 Manuel Unternährer , Bänz Bessire , Leonardo Gasparini , David Stoppa , André Stefanov

We introduce a method for detecting astrophysical transients evolving on timescales of milliseconds to minutes using cosmic microwave background (CMB) survey telescopes. While previous transient searches in CMB data operate in map space,…

A modified version of the folded aplanatic Gregory telescope equipped with a spherical two-lens corrector is proposed for observations requiring a high signal-to-noise ratio. The basic telescope model has an aperture of 400 mm (f/3.0), its…

天体物理仪器与方法 · 物理学 2017-12-06 V. Yu. Terebizh

The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world's largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives. We conducted a targeted…

天体物理仪器与方法 · 物理学 2025-09-09 Guang-Yuan Song , Zhen-Zhao Tao , Bo-Lun Huang , Yan Cui , Bo Yu , Tong-Jie Zhang

The light from a source at a distance d will arrive at detectors separated by 100 AU at times that differ by as much as 120 (d/100 Mpc)^{-1} nanoseconds because of the curvature of the wavefront. At gigahertz frequencies, the arrival time…

宇宙学与河外天体物理 · 物理学 2023-05-10 Kyle Boone , Matthew McQuinn

Organized Autotelescopes for Serendipitous Event Survey (OASES) is an optical observation project that aims to detect and investigate stellar occultation events by kilometer-sized trans-Neptunian objects (TNOs). In this project, multiple…

The Argus Optical Array will be the first all-sky, arcsecond-resolution, 5-m class telescope. The 55 GPix Array, currently being prototyped, will consist of 900 telescopes with 61 MPix very-low-noise CMOS detectors enabling sub-second…

天体物理仪器与方法 · 物理学 2022-08-01 Nicholas Law , Alan Vasquez Soto , Hank Corbett , Nathan Galliher , Ramses Gonzalez , Lawrence Machia , Glenn Walters

A novel method of generating artificial scintillation noise is developed and used to evaluate occultation rates and false positive rates for surveys probing the Kuiper Belt with the method of serendipitous stellar occultations. A thorough…

地球与行星天体物理 · 物理学 2009-11-13 Steven Bickerton , Doug Welch , JJ Kavelaars

Binary neutron star mergers are important to understand stellar evolution, the chemical enrichment of the universe via the r-process, the physics of short gamma-ray bursts, gravitational waves and pulsars. The rates at which these…

The TBT project is being developed under ESA's General Studies and Technology Programme (GSTP), and shall implement a test-bed for the validation of an autonomous optical observing system in a realistic scenario within the Space Situational…

天体物理仪器与方法 · 物理学 2016-09-27 Francisco Ocaña , Aitor Ibarra , Elena Racero , Ángel Montero , Jirí Doubek , Vicente Ruiz
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